Pop singer Sia recently revealed in a Tweet that she is battling chronic pain as a result of an autoimmune disease and another genetic condition.

In the Tweet, Sia said, “Hey, I’m suffering with chronic pain, a neurological disease, [and] ehlers danlos and I just wanted to say to those of you suffering from pain, whether physical or emotional, I love you, keep going,” she wrote. “Life is fucking hard. Pain is demoralizing, and you’re not alone.”

Sia suffers from an autoimmune condition called Grave’s disease, which occurs when the body’s immune system attacks the thryoid gland. This results in hyperthyroidism, which is the overproduction of the thyroid hormone. Without treatment, the disease can result in heart problems like irregular heartbeat, blot clots, stroke, and heart failure, as well as eye health issues, like double vision, light sensitivity, eye pain and vision loss. It can even lead to thinning bones and osteoporosis.

In addition to Grave’s, Sia has Ehlers-Danlos Syndrome, a genetic condition and connective tissue disorder that can affect one’s bones, joints, skin and blood vessels.

Sia’s Tweet has garnered over 170,000 ‘likes’ on Twitter and has many fans responding with well-wishes and sharing their own experiences with chronic illness. One fan tweeted, “We love you so much Sia, you’re not alone either, please take care ❤ sending you lots of love and healing vibes.”

Her Tweet also draws similarities to Jameela Jamil’s Instagram message, in which she also revealed that she has Ehlers-Danlos Syndrome and another autoimmune disease called Hashimoto’s Thyroiditis, which causes hypothyroidism (the opposite of Grave’s Disease).

Philippines Leader Rodrigo Duterte Says He Has Autoimmune Disease

The President of the Philippines, 74-year-old Rodrigo Duterte, says he suffers from an incurable autoimmune disease. The condition, called myasthenia gravis (MG), is a neurological disease that causes weakness in the skeletal muscles, according to the National Institute of Neurological Disorders and Stroke. The disease can also affect eyelid movements, facial expressions, talking, chewing and swallowing.

Myasthenia gravis occurs when the body’s own immune system attacks the neurotransmitter receptors on one’s muscles. This prevents the neurotransmitters responsible for muscle contraction from binding to nerve endings, thereby preventing muscle contraction. This results in the widespread muscle weakness that is the hallmark of this disease.

Duterte believes that he inherited the condition from his grandfather, who had myasthenia gravis as well. “One of my eyes is smaller. It roams on its own,” he said, according to a transcript released Sunday by his presidential office.

Although Duterte appears to be in relatively good health, and myasthenia gravis can be managed with treatment, about 20% of the people with the disease will experience a health crisis at some point in their lives.